From 76f1664be8570d847e2d848d79b119dec561ce61 Mon Sep 17 00:00:00 2001
From: DeaDDooMER <deaddoomer@deadsoftware.ru>
Date: Sat, 31 Aug 2019 16:41:43 +0300
Subject: [PATCH] fix openal driver linking

---
 src/game/Doom2DF.lpr | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/src/game/Doom2DF.lpr b/src/game/Doom2DF.lpr
index 546cabf..f972e59 100644
--- a/src/game/Doom2DF.lpr
+++ b/src/game/Doom2DF.lpr
@@ -22,13 +22,20 @@
 {$ENDIF}
 {$HINTS OFF}
 
-{$IFDEF USE_SDLMIXER}
- {$IFDEF USE_FMOD}
-  {$ERROR define only one of USE_SDLMIXER or USE_FMOD}
- {$ENDIF}
+{$IF DEFINED(USE_SDLMIXER)}
+  {$IF DEFINED(USE_FMOD) OR DEFINED(USE_OPENAL)}
+    {$ERROR Only one sound driver must be selected!}
+  {$ENDIF}
+{$ELSEIF DEFINED(USE_FMOD)}
+  {$IF DEFINED(USE_SDLMIXER) OR DEFINED(USE_OPENAL)}
+    {$ERROR Only one sound driver must be selected!}
+  {$ENDIF}
+{$ELSEIF DEFINED(USE_OPENAL)}
+  {$IF DEFINED(USE_SDLMIXER) OR DEFINED(USE_FMOD)}
+    {$ERROR Only one sound driver must be selected!}
+  {$ENDIF}
 {$ELSE}
- {$UNDEF USE_SDLMIXER}
- {$DEFINE USE_FMOD}
+  {$ERROR Sound driver not selected. Use -DUSE_SDLMIXER or -DUSE_FMOD or -DUSE_OPENAL}
 {$ENDIF}
 
 uses
-- 
2.29.2